The Chevalier served as an Old Star League light tank for nearly a century. Their numbers dwindled steadily during the Succession Wars, cannibalized for their sophisticated weapon systems. In fact, at the time of the Clan invasion, fewer than a dozen Chevaliers served among all the Successor State militaries.
         Only one manufacturer, Millennium Industries of Terra, continued to produce the Chevalier according to its original specifications. Though the armies of the Draconis Combine and Federated Commonwealth possessed a few of these Chevaliers, most of Millennium's output was purchased by the Com Guard or Explorer Corps prior to the Word of Blake invasion of Terra. After that, many appeared in the armies of the Word, but after the Jihad ComStar upgraded the design to its new specs and built them for a time, replenishing its diminished stock of them. Construction has ceased in recent years though, leaving their operation up to the capability of the technicians.

         The Chevalier is a well-designed, versatile tank capable of performing for extended periods between maintenance and resupply stops.
         The Chevalier's Chobham Max-Tec armor provide it with remarkable protection for a light tank. A turret-mounted extended-range large laser serves as the tank's primary weapon, while a pair of forward-firing Streak-2 short-range missile launchers provide additional firepower. Though this weapon mix leaves the Chevalier with less firepower than many contemporary light-tank designs, the large laser enables the Chevalier to operate for long periods without stopping to replenish ammunition. The Com Guard also uses a version that strips some armor and all of the weapons in exchange for an extra-light engine and an Arrow IV with four tons of ammunition.
         The Chevalier's weapons and eight-wheeled locomotive system are powered by a massive RT 190 fusion plant that constitutes a third of the Chevalier's mass. The RT 190 enables the Chevalier to reach a top speed of 97 kph - Considerably slower than hovercraft of comparable mass, but quite respectable for a wheeled or tracked Vehicle.
         The main weakness in the Chevalier's design is the tank's cramped crew quarters. This space contains barely enough room for the vehicle's three crew members, let alone food and other supplies. Chevaliers assigned to the Explorer Corps are forced to strap their supplies to the outside of the tank using cargo nets or cargo pods.

         Originally designed as a fast reconnaissance tank, the Chevalier has been superseded by a host of new vehicles armed with sophisticated electronics systems. However, the Com Guard continues to employ impressive numbers of Chevaliers for reconnaissance and among screening forces, and many serve with rear-echelon units in a wide variety of roles. Despite the inherent limitations of the tank's wheeled drive system, the Explorer Corps commonly uses Chevaliers as well.